la-di-da

exclamation
1
used when somebody is annoying you, because they seem to think they are more important than they really are
ای بابا, او-او، آدم مهم!
adjective
1
used to describe a way of speaking or behaving that is typical of upper-class people but that is not natural or sincere
پر ادا و اصول, ظاهرسازی با ناز و ادا, متظاهرانه
synonym affected